In ABRSM Grade 2, key signatures and tonic triads go beyond memorisation — the goal is to understand the pattern well enough that you can work anything out from scratch. Once you know how a major scale is built, you can derive any key or triad without having to rely on memory alone.

The Major Scale Pattern [00:00:17]

Every major scale follows the same sequence of intervals: Tone, Tone, Semitone, Tone, Tone, Tone, Semitone. That’s your blueprint. Whether you start on C, G, or D, follow those steps and you’ll get a major scale. Deviate from them and you won’t.

Where Sharps and Flats Come From [00:02:40]

When we build a scale starting on G, we find that the interval between E and F is naturally a semitone — but our blueprint requires a tone at that point. So we push the F up to F#. That’s where the sharp comes from. By Grade 2 you should be comfortable with keys up to three sharps (G, D, A) and three flats (F, B♭, E♭) [00:05:24].

What is a Tonic Triad? [00:12:57]

A triad is a three-note chord. The tonic triad is built from the 1st, 3rd, and 5th notes of the scale.

  • C Major: C – E – G
  • G Major: G – B – D
  • F Major: F – A – C

On the staff, a root position triad will always look consistent: either line-line-line or space-space-space [00:09:01]. If your triad looks uneven, you’ve likely missed a note.

Exam Tip: The “First Principles” Strategy [00:13:51]

Ideally you’ll have your scales memorised so the information is immediately available. But if memory lets you down in the exam, go back to basics: work out the tones and semitones, write the scale out, and pick the 1st, 3rd and 5th. It takes longer, but it always gets you to the right answer.

How to Memorise: The Connection Between Hand and Mind [00:16:40]

The most effective way to anchor this knowledge is through transcription. Writing has a neurological connection that typing simply doesn’t replicate. Write out your scales by hand, say the note names aloud as you go, and then play them on the piano. Do all three together and the theory stops being something you look up — it becomes something you know.

If you’re preparing for Grade 2 theory and want to make sure the foundations are solid, get in touch — I’m looking forward to hearing your story.